... system. Eratosthenes calculated that the earth's circumference was 24,662 miles and was within 1 percent of our modern calculations. Euclid, a highly regarded mathematician, wrote the elements, which contained 465 geometry propositions and proofs. Another important scientist, Archimedes of Syracuse, accurately estimated the value of pi. He also explained the law of the lever and invented the pulley to lift heavy objects. The ... ...

• Word Count: 703
• Approx Pages: 3
• Grade Level: High School

... system. Eratosthenes calculated that the earth's circumference was 24,662 miles and was within 1 percent of our modern calculations. Euclid, a highly regarded mathematician, wrote the Elements, which contained 465 geometry propositions and proofs. Another important scientist, Archimedes of Syracuse, accurately estimated the value of pi. He also explained the law of the lever and invented the pulley to lift heavy objects. The ... ...

• Word Count: 618
• Approx Pages: 2
• Grade Level: High School

... system. Eratosthenes calculated that the earth's circumference was 24,662 miles and was within 1 percent of our modern calculations. Euclid, a highly regarded mathematician, wrote the elements, which contained 465 geometry propositions and proofs. Another important scientist, Archimedes of Syracuse, accurately estimated the value of pi. He also explained the law of the lever and invented the pulley to lift heavy objects. The ... ...

• Word Count: 703
• Approx Pages: 3
• Grade Level: High School